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计划阶段中得到的资料数据只是很初步的,所以很难用它来进行桥梁结构的成本估算。这篇文章介绍了一个估算成本足够精确的方法,它还可按照特定的年度,对成本预算进行调整。
Data obtained during the planning phase are preliminary and difficult to use to estimate the cost of a bridge structure. This article describes a method of estimating costs that is accurate enough and adjusts the cost estimates by a specific year.